remove memoryinstrumentation

Source/core/css/CSSStyleRule.cpp

Index: Source/core/css/CSSStyleRule.cpp
diff --git a/Source/core/css/CSSStyleRule.cpp b/Source/core/css/CSSStyleRule.cpp
index c2ee9742b30436f822e0532eada89fa4515e4fba..c3feab6beedb6fccafbb5d462bb657488bfe4b49 100644
--- a/Source/core/css/CSSStyleRule.cpp
+++ b/Source/core/css/CSSStyleRule.cpp
@@ -29,7 +29,6 @@
 #include "PropertySetCSSStyleDeclaration.h"
 #include "StylePropertySet.h"
 #include "StyleRule.h"
-#include "WebCoreMemoryInstrumentation.h"
 #include <wtf/text/StringBuilder.h>
 
 namespace WebCore {
@@ -131,12 +130,4 @@ void CSSStyleRule::reattach(StyleRuleBase* rule)
         m_propertiesCSSOMWrapper->reattach(m_styleRule->mutableProperties());
 }
 
-void CSSStyleRule::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
-{
-    MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS);
-    CSSRule::reportMemoryUsage(memoryObjectInfo);
-    info.addMember(m_styleRule, "styleRule");
-    info.addMember(m_propertiesCSSOMWrapper, "propertiesCSSOMWrapper");
-}
-
 } // namespace WebCore